Reinforcing device for supporting material around beams.



H.'A. ANDERSEN.

REINFORCING DEVICE FOR SUPPORTING MATERIAL AROUND BEAMS.

APPLlcATIoN man ocT.a1. 1914.

1,208,886. Patented Dee.19,1916.

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HARRY A. ANDERSEN, OF JAMAICA, NEW' YORK.

REINFORCING- DEVICE FOR SUPPORTING MATERIAL AROUND BEAMS.

Application led October 31, 1914.

To all whom it may concern.'

Be it known that I, HARRY A. ANDERsEN, a citizen of the United States, and resident of Jamaica, in the county of Queens and State of New York, have invented a new and Improved reinforcing Device for Supporting Material Around Beams, of which the following is a specification.

This invention relates to improved means for supporting the concrete protection around the flanges of beams in buildings and other structures and has for its object the obtaining of an efficient and economical supporting device.

In the construction of building floors where steel beams are used, the method most commonly used consists of a terra cotta or a. concrete slab or arch placed between, and supported upon the flanges of the adjoining beams. In order to reproof the bottom flanges of the beams they are also protected with terra. cotta or concrete. In the case where concrete is used, it is found rather troublesome to make the concrete adhere to the bottom flange of the beam. To overcome the objectionable feature, wires are used bent over the flanges and spaced about twelve inches apart. In this method it is found that the concrete, while being poured into the form, forces the wire up against the bottom flange of the beam and thus a good bond is not obtained between the painted surface of the flange of the beam and the concrete. Another difficulty encountered, is to keep the wires properly spaced. A somewhat better method employed, is the use of expanded metal or wire mesh around the flanges of the beams, but these methods still retain some of the objectionable features mentioned above and are more expensive. My new and improved reinforcing device or flange clip eliminates the above objectionable features by being made of a definite shape and size, while its projecting flange by being hooked over the flange of the beam assures a definite position for same and it cannot readily be displaced.

One of the many advantages of my inven tion is that the clip, being provided with a web and top and bottom flanges, really forms a small beam, thereby providing a very strong support for the protection concrete, furthermore, the top flange of the clip by pressing against the flange of the beam provides a rigid support for the clip which will not be displaced when the concrete is being Specification of Letters Patent.

Patented Dec. i9, i916.

Serial No. 869,595.

poured, while the shape of the bottom is such as to provide a support for the concrete slab on both sides of the clip, thereby supporting the concrete without depending upon any adhesion of the concrete to the flange of the beam.

Another feature of my invention is that when the clips are hooked over the flanges and the forms placed and the concrete poured in, the weight of the concrete by pressing down upon the bent over clip and being' surrounded with the adjoining concrete provides a very strong support for the slabs.

A further advantage of my invention is that where a flat ceiling construction is desired, the slab may be cast on the ground in the following manner: The wire reinforcement or any other form of reinforcing material used, is laid out on smooth boards placed on the ground, the clips are then placed at the required distances apart and the concrete slab is then cast. After the slab has set, the entire slab is lifted and the clips hooked over the flanges of the beams thus `forming a suspended ceiling. In some cases, this form of ceiling may also be used as a form for pouring the floor concrete.

Another advantage of my invention is that it may be used to repair portions of beam flanges not properly protected, in which case the concrete is cut away to the required width, a pair of clips are then hooked over the flange of the beam and then concrete is packed in between.

Another advantage of my device is that in a case where it is desired not to delay the construction work and the clips or other form of reinforcement cannot be obtained in time, the forms may be built in place and the clips hooked into position from the top after the forms are built. This could not be done so well with any other form of reinforcement.

Another feature of my invention which makes it very economical, is, that it is stamped from one sheet of metal.

Other advantages of my invention will be apparent from the detailed description and the accompanying drawing forming a part of this specification in which like numerals correspond to similar parts in all the views, in which- Figure 1 is a longitudinal elevation of an I beam showing the clips hooked over the bottom flange and the concrete in place. Fig, 2 shows a cross section of an I beam flange with the clip hooked over. Fig. 3 is a section on line 3-3 of Fig. 2. Fig. 4 is longitudinal view of the clip before the upper fianges of the clip are bent over the flanges of the beam. Fig. 5 is a section taken on line 5-5 of Fig. 4, while Fig. 6 is a view showing the clip hooked over the beam and the concrete protection around it.

Referring to Figs. 3, 4 and 5, my device consists of a sheet of metal formed into the web 13, the upper flange 9, approximately at right angles to the web 13 and the bottom flanges 14 and 15 joined b y a short web as shown in Figs. 3 and 5. cut in at the junction of the web 13 and the fiange 9 leaving the portions S of the fiange 9 brojecting beyond the edges 7. The distance between the points 1'2, the innermost portions of the grooves 11, is varied to correspond to the various widths of beam flanges used. The projecting portions 8 of the iange-Q are adapted to be bent over the flanges of the beam G, thus fastening the clip y to the beam.

between the adjoining clips as is clearly shown on the right side of Fig. 1. The holes 17 serve to provide additional bond between the concrete and the form. An alternative method of making my form is that The slots 11 ared the shape may be made of wire mesh instead of sheet metal.

The form described embodies my preferred form, however several modifications may be made employing the same general principle. l do not wish to limit myself to the exact form disclosed, but wish to include all forms embodying this principle.

Having thus disclosed my invention, I claim as new and wish to secure by Letters Patent.

1. A reinforcing support for the proteotien material around a beam, comprising an upper flange with free ends adapted to be bent around the beam, a main web integral with said flange, and two lower flanges one above the other, a second web integral with and connecting said lower flanges to each other, the upper fiange of said lower Harige being integral with said main web.

2. A reinforcing support for protection material around a beam, comp 1ising an upper flange with free ends adapted to be bent around the beam, a perforated main web integral with said flange, and two lower flanges one above the other, a perforated second web integral with and connecting said lower flanges to each other, the upper flange of said lower fianges being vintegral with said main web.

Signed at New York in the county of New York and State of New York this 28th day of October, 1914.

HARRY A. ANDERSEN.

lVitnesses:

ADoLrH G. MARTENS, SIGMUND LANDSMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of atents,

Washington, D. C. 

